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| author | Deep Majumder <deep@fastmail.in> | 2021-11-19 09:14:01 +0300 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2021-12-31 16:39:28 +0300 |
| commit | c116fe1e1883ad3eda0a1938a9e3275a98aa51a5 (patch) | |
| tree | 74e0ad49c0d338477bbf1a2a6b32b76950ffd7d9 /Documentation | |
| parent | bb436283e25aaf1533ce061605d23a9564447bdf (diff) | |
| download | linux-c116fe1e1883ad3eda0a1938a9e3275a98aa51a5.tar.xz | |
Docs: Fixes link to I2C specification
The link to the I2C specification is broken. Although
"https://www.nxp.com" hosts Rev 7 (2021) of this specification, it is
behind a login-wall. Thus, an additional link has been added (which
doesn't require a login) and the NXP official docs link has been
updated.
Signed-off-by: Deep Majumder <deep@fastmail.in>
[wsa: minor updates to text and commit message]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/i2c/summary.rst | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/i2c/summary.rst b/Documentation/i2c/summary.rst index 136c4e333be7..786c618ba3be 100644 --- a/Documentation/i2c/summary.rst +++ b/Documentation/i2c/summary.rst @@ -11,9 +11,11 @@ systems. Some systems use variants that don't meet branding requirements, and so are not advertised as being I2C but come under different names, e.g. TWI (Two Wire Interface), IIC. -The official I2C specification is the `"I2C-bus specification and user -manual" (UM10204) <https://www.nxp.com/docs/en/user-guide/UM10204.pdf>`_ -published by NXP Semiconductors. +The latest official I2C specification is the `"I2C-bus specification and user +manual" (UM10204) <https://www.nxp.com/webapp/Download?colCode=UM10204>`_ +published by NXP Semiconductors. However, you need to log-in to the site to +access the PDF. An older version of the specification (revision 6) is archived +`here <https://web.archive.org/web/20210813122132/https://www.nxp.com/docs/en/user-guide/UM10204.pdf>`_. SMBus (System Management Bus) is based on the I2C protocol, and is mostly a subset of I2C protocols and signaling. Many I2C devices will work on an |